1. Popliteal artery compression and force of active plantar flexion in young healthy volunteers 
Ulrich Hoffmann, MD, Julia Vetter, MS, Lisa Rainoni, RVT, Anders J. Leu, MD, Alfred Bollinger, MD 
Journal of Vascular Surgery 
Volume 26, Issue 2, Pages (August 1997)
DOI: /S (97)
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2. Fig. 1 Experimental setup. For further explanation, see text.
Journal of Vascular Surgery  , DOI: ( /S (97) )
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3. Fig. 2
Color duplex sonography of popliteal artery (transverse section) in normal position (upper panel) and during active plantar flexion (lower panel). In normal position, color flow signal of popliteal artery is well visualized. During plantar flexion, vessel is compressed and flow signal completely disappears.
Journal of Vascular Surgery  , DOI: ( /S (97) )
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4. Fig. 2
Color duplex sonography of popliteal artery (transverse section) in normal position (upper panel) and during active plantar flexion (lower panel). In normal position, color flow signal of popliteal artery is well visualized. During plantar flexion, vessel is compressed and flow signal completely disappears.
Journal of Vascular Surgery  , DOI: ( /S (97) )
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5. Fig. 3
A, Plantar flexion force at popliteal artery occlusion (Poccl; in kg) in lower limbs of athletes (n = 32) and normally active subjects (n = 35). Note two extreme values in athlete group, which belong to a female subject with bilateral popliteal artery occlusion. B, Plantar flexion force at popliteal artery occlusion as a percentage of the maximum force raised during plantar flexion (Prel; in percent). Two lowest values in athlete group belong to same female subject mentioned above.
Journal of Vascular Surgery  , DOI: ( /S (97) )
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

6. Fig. 3
A, Plantar flexion force at popliteal artery occlusion (Poccl; in kg) in lower limbs of athletes (n = 32) and normally active subjects (n = 35). Note two extreme values in athlete group, which belong to a female subject with bilateral popliteal artery occlusion. B, Plantar flexion force at popliteal artery occlusion as a percentage of the maximum force raised during plantar flexion (Prel; in percent). Two lowest values in athlete group belong to same female subject mentioned above.
Journal of Vascular Surgery  , DOI: ( /S (97) )
Copyright © 1997 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions